There are a variety of CB antennas on the market and everyone has a different installation process to follow. This manual should provide the steps that are common to the entire CB antenna system. It will also explain the factors that greatly influence the operation of your CB antenna.
1. Select a location
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The first thing to consider when installing the CB antenna is to select a suitable location. Before you get your antenna home make sure you have selected the item. Here are some tips for this job in the right way:
Try your vehicle roof center as the first mounting point for your CB antenna. Do not attempt to install the antenna on the bumper, registration plate or fender, as these are the poorest installations. Correct your antenna so that your coil is located above the roof of your car. Because the coil is a heart of an antenna and for better reception on your radio antenna, the coil must be covered with a hard material such as a diamond, only that makes your antenna more effective.
Select a sufficiently high antenna that is sufficient to fit your vehicle.
2. Installation of the CB antenna with magnetic mounting
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This may vary depending on the type of antenna you have in your difficulty level. If you have a magnetic holder, the process can be as simple as simply attaching the attachment to the selected location. On the other hand, the door stop bracket may need technical assistance to drill the bracket in place. You can get an idea of the type of your CB antenna and the antenna installation process from the guide that accompanies the product.
3. Route the cable
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Determining the correct route for the connecting cable is the next important step. There is a coaxial cable that connects the CB antenna to your CB radio. Here are the tips you can follow:
Buy a coaxial cable with detachable PL259. This connection helps you to guide your cable through the smaller holes.
Do not try to cut the coaxial cable.
4. Tuning CB antenna
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After completing the CB radio and CB antenna setup, it is time to set the system to the correct frequencies. Setting up a CB antenna is the most important part of the CB antenna installation process that determines the future performance of your CB system. A well-tuned antenna is required to improve the recording and transmission capabilities of your CB system, despite the constant 4 watts output available for each CB radio.
5. To set the CB antenna
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Disconnect the CB antenna first and check if your coax is outside the back door.
Now get your SWR meter and connect the antenna coaxially with the antenna connector.
Clean the space around your vehicle and keep the windows and doors closed.
Turn on your CB radio.
Set the SWR meter to "FWD".
Press the Talk button to enter the microphone and adjust the button by rotating it until you find your SWR meter. Well, bring the meter to "reflect" status.
Re-connect the microphone and measure the measured value on the meter. If the reading is low, everything goes well. But if you're in the red zone, check your setup again while turning off the CB radio.
Set the CB antenna by combining the bandwidth of channel 40
If you get a channel 1 channel that is higher than Channel 40, this means that your CB antenna is too short and its length should be increased. On the other hand, if you listen to channel 40, it is higher than channel one, shortens the antenna slightly.
If the measured values on Channel 1 and Channel 40 are 1.2 and 2.3, cut your CB antenna to shorter length. Be careful when cutting the CB antenna, a slightly larger panel may damage the antenna power.
If the measured values are 2.6 and 1.3 on channels 1 and 40, increase the length of the CB antenna. You can only adjust the length by adjusting the screws or you can use the spring between the holder and the whip.
In small steps, follow these steps. Once you have reached an appropriate SWR level for your CB system, you can disconnect the system's SWR meter or you can hold it for future tests.
The position of the CB antenna is important. We mean the area where you want to vote for your CB antenna.
Installing the CB antenna if a CB antenna is short in the ground creates a very high SWR level for your CB system. You can expect this to occur on the CB antenna screw or coaxial cable.
When the antenna is installed, it shuts off when the shield comes into contact with the conductor located in the center of the cable. To make sure your Coax is working properly, first disconnect it from the CB antenna and CB radio and then test a multimeter. If there is no continuity between the two, your coax is perfect. Otherwise, you will need a new coaxial cable for your system.
When the antenna is installed, there is a high probability that the antenna station will be short when the antenna coupling nut and the screw come into contact with the antenna holder. If you carefully place the nylon rings, you can prevent this from happening, but this requires extra care. This type of contact finally ends with the main trigger of the antenna pins, ie the antenna that is above the ground, with a distance between the two. Now you can use the multimeter to check the health of your antenna connections. First check that the antenna holder is properly grounded in the vehicle's chassis. If you have a metal counter, land it by contacting it with the metal surface of the vehicle. To make it easier, take a multimeter and test if your country location is good or not. You can also use the ground trap to drop your CB antenna.
5. Coiled Coax
Generally, if you have a very long coaxial cable, it may be missing even after the complete installation is completed and the cable is powered. This additional coaxial is usually rotated or wound, just like the antenna's coil. When this happens, your system will experience the signal feedback effect. To avoid this, select a longer route to route your cable to the CB radio.
6. Insufficient ground level
We now know that an antenna needs a wide metal base plate as a must for a perfect CB antenna installation. First select the base plate with the largest metal cap. When attaching the antenna to the sides, hold the antenna close to the main body of the vehicle. For vehicles without metal chassis, use the ground CB antennas.
Your CB antenna will be defective if it is disturbed by the environment. This usually happens when you install your CB antenna very low in the vehicle, just like your bumper. This reflects the signals on the antenna and you get a high level of SWR. To solve this problem, keep the CB antenna far above the roof line and give maximum exposure by placing it at the highest point.
8. Broken antenna
Usually, CB antennas have an inner fiberglass pole that has a copper wire wrapped around it. Any defects or tears in this wire can make your antenna useless and you get very high SWR levels. Check the continuity between the tip and base of your antenna with a multimeter. You can use the multimeter probe if the removable tip is missing. In this case, if you do not find continuity between the antenna point and the base, replace the defective antenna.
9. Coaxial short or low quality CB
If you have tried all other solutions and your problem has not been resolved, try replacing your coaxial cable with a bigger and better. Choose a cable of a good brand that gives high quality.
10. Length of the CB antenna
Most CB antenna manufacturers guarantee preset antennas and you do not need to re-customize. Then consider changing the length of your antenna as one of the last resorts. Always be careful when changing the length of your CB antenna as it is easy The safest way to do this is to cut a small part of the antenna and measure the measured value on the SWR meter to match each cut to ensure that you have the SWR level.